Merge pull request #31853 from simi/patch-2

Update to latest rubies (2.2.9, 2.3.8 and 2.4.3) on Travis CI.

.travis.yml

@@ -60,9 +60,9 @@ env:
     - "GEM=ac:integration"
 
 rvm:
-  - 2.2.8
-  - 2.3.5
-  - 2.4.2
+  - 2.2.9
+  - 2.3.6
+  - 2.4.3
   - 2.5.0
   - ruby-head
 
@@ -70,19 +70,19 @@ matrix:
   include:
     - rvm: 2.5.0
       env: "GEM=av:ujs"
-    - rvm: 2.2.8
+    - rvm: 2.2.9
       env: "GEM=aj:integration"
       services:
         - memcached
         - redis-server
         - rabbitmq
-    - rvm: 2.3.5
+    - rvm: 2.3.6
       env: "GEM=aj:integration"
       services:
         - memcached
         - redis-server
         - rabbitmq
-    - rvm: 2.4.2
+    - rvm: 2.4.3
       env: "GEM=aj:integration"
       services:
         - memcached
@@ -100,15 +100,15 @@ matrix:
         - memcached
         - redis-server
         - rabbitmq
-    - rvm: 2.3.5
+    - rvm: 2.3.6
       env:
         - "GEM=ar:mysql2 MYSQL=mariadb"
       addons:
         mariadb: 10.2
-    - rvm: 2.3.5
+    - rvm: 2.3.6
       env:
         - "GEM=ar:sqlite3_mem"
-    - rvm: 2.3.5
+    - rvm: 2.3.6
       env:
         - "GEM=ar:postgresql POSTGRES=9.2"
       addons: